In 2010, Newsweek surveyed more than 1,000 people, some of whom were hiring managers, and discovered 72 percent believed being considered attractive was an advantage for a woman who's interviewing for a job.

"I think that a manager at work wants to know that you care enough about your appearance to be able to project professionalism on the job," Cindi Leive, the editor-in-chief of Glamour, told NBC.

And after the interviewee gets the job? Sixty percent of the hiring managers Newsweek polled thought women who wore figure-flattering clothing at work might have an advantage.

And in another study, so-called attractive people were found to make as much as 11-15 percent more than their less-attractive co-workers.

But it might be that we can't help ourselves when responding favorably to people we think are attractive.

Dr. Gordon Patzer, who studies attractiveness, told CNN, "Controlled studies show people go out of their way to help attractive people — of the same and opposite sex — because they want to be liked and accepted by good-looking people."

It's actually related to a type of cognitive bias called the Halo Effect, a term first used in 1920. A variation of the Halo Effect says people will often think attractive individuals are smarter, funnier, kinder and even more athletic than average-looking people.

Still, good looks can sometimes be a detriment for women. Crudely referred to as the "bimbo effect," good-looking women might find they have to work hard to prove their competence, especially when working in male-dominated settings.

While it's been acknowledged these beauty biases exist in our culture, not a whole lot is being done to fight them.

In 2011, an economics professor wrote in a New York Times article it might not be difficult to come up with classes of attractiveness to make an anti-discrimination law, but getting people to classify themselves as "not-attractive" might difficult.

"'Ugliness' is not a personal trait that many people choose to embrace; those whom we classify as protected might not be willing to admit that they are ugly," Daniel Hamermesh wrote.